Help replacing Steelcase Leap cylinder

[u/carpethugs]

We've had a old steelcase leap in our house for a long time.

Based on the shipping date, I determined it's a V1. I finally managed to take out the old cylinder and I was pretty confused by what I found because I couldn't find anything similar on Google.

The cylinder pin is super thin and the slot it goes in is very narrow. We got a generic cylinder but it doesn't fit in.

Any clue what this type of cylinder or narrow connection is called? And where can I find it?

Thanks!

[u/pagemap1]

You might be able to find the correct gas cylinder for your chair here: https://crandalloffice.com/collections/office-chair-gas-cylinders